/Engine/Plugins/EnhancedInput/Source/EnhancedInput/Public/EnhancedInputLibrary.h
Returns true if this Action Key Mapping either holds a Player Mappable Key Settings or is set bIsPlayerMappable.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintPure, Category="Input", Meta=(ReturnDisplayName="Is Player Mappable")) static bool IsActionKeyMappingPlayerMappable ( const [FEnhancedActionKeyMapping](API\Plugins\EnhancedInput\FEnhancedActionKeyMapping) & ActionKeyMapping )